I have a Dell Dimension 4550 desktop. My CD drives stopped working. Nothing happens when I put disks in. When I click on the D drive it still says “not accessible”. I was advised to replace the cable to the drives. Now when I click on the D drive I just get the little hourglass icon. I wait and nothing happens. When I closed the window the icons were gone from the desktop. I had to hit the power button to shut down my PC.